AI Appraisal Estimate

AI-generated estimates · not official valuations

From the user

What was submitted

Photo and notes provided by the user — not generated by AI

Submitted item photo
Submitted photo · June 6, 2026

User's notes

Japanese animation catalog

AI analysis below

AI appraisal

AI analysis & estimate

AI-Generated · Verify before acting

Everything below is generated by AI for informational purposes only. AI can make mistakes — the AI may misidentify items or misattribute them (artist, maker, brand, designer, origin, era). This is not an official valuation and should not be used for insurance, sale, tax, estate, legal, or lending purposes — or any decision requiring a certified appraisal. It is not an authoritative claim about any person, brand, or rights holder — do not share or rely on it as a factual statement about a third party. Always consult qualified professionals before making financial decisions.

Note

This analysis also relies on unverified notes provided by the user, which may be incomplete or inaccurate and could affect the result.

Read the full disclaimer

AI Identification

·Not independently authenticated·Verify before acting

Original Rough Sketch for 'Castle in the Sky' by Hayao Miyazaki

Animation Art

AI Estimated Value

·Not an official valuation·Verify before acting

$40,000-60,000

As of June 6, 2026

AI Item Analysis

·AI can make mistakes·Verify before acting
This item is identified as an original rough sketch by Hayao Miyazaki for the animated film 'Castle in the Sky' (天空の城ラピュタ), released in August 1986 by Studio Ghibli. The sketch is presented within a dark brown to black wooden frame with a visible black mat board, creating a stark contrast with the light-colored paper of the artwork. The overall dimensions of the framed piece are not specified, but the sketch itself measures 235mm x 350mm (approximately 9.3" x 13.8"). It appears to be a single, preliminary drawing featuring an animated character, likely a protagonist, depicted in a dynamic pose. The character is rendered in grey pencil or graphite, showcasing the expressive and fluid lines characteristic of initial concept art. The visible portion of the sketch indicates a youthful character, possibly Pazu or Sheeta from the film, with a round face, large eyes, and wearing what appears to be a cap. The drawing style is clean yet loose, reflecting the early stages of character design or animation sequencing. There are no obvious signs of significant damage, tears, or discoloration on the sketch itself; its condition appears stable given its age. The frame and mat also seem to be in good condition, although the lighting makes it difficult to assess minor scuffs or dust. There are no visible maker's marks on the frame, but the significance lies in the attribution to Hayao Miyazaki and Studio Ghibli, which lends immense historical and artistic value to this unique piece of animation production history. The craftsmanship of the sketch is indicative of high-level animation pre-production, focusing on capturing character essence and movement.

AI Appraisal Report

·AI can make mistakes·Verify before acting
I have examined the provided image and information for this original rough sketch by Hayao Miyazaki for 'Castle in the Sky.' The sketch, measuring 235mm x 350mm, appears to be in excellent condition for its age, showing no visible tears, significant discoloration, or creases. The grey pencil/graphite lines are clear and express the dynamic, fluid quality characteristic of Miyazaki's early concept work. The framing also appears to be in good condition, providing adequate protection. Authenticity is a primary driver of value here. While the description attributes this to Hayao Miyazaki and details from a Japanese animation catalog, full authentication from an image alone is impossible. An in-person examination would be crucial to assess paper quality, confirm the medium, and look for subtle drawing characteristics unique to Miyazaki. Furthermore, robust provenance documentation, such as letters of authenticity from Studio Ghibli, original sales receipts, or a documented exhibition history, would significantly bolster its value. Scientific testing, like carbon dating for the paper or pigment analysis, could also offer additional insights, though this is less common for animation sketches. The market for original animation art, especially from Studio Ghibli and Hayao Miyazaki, is exceptionally strong and continually growing. Miyazaki's works are iconic and beloved globally, creating high demand for any original artwork. Original concept sketches, being foundational to the final film, are particularly rare and coveted by collectors. Comparables for such pivotal pieces are scarce at auction, but similar preliminary works from acclaimed animation directors often fetch high prices, demonstrating strong collector competition. The uniqueness of this piece as an early concept from a foundational Miyazaki film, combined with its apparent good condition and historical significance, places it at the higher end of the spectrum for animation pre-production art. Without definitive in-person authentication and comprehensive provenance, there's always a degree of uncertainty regarding ultimate value. However, assuming authenticity as described, this is a highly desirable piece.

Get your items appraised

Instant estimates of your treasures with AI-powered appraisals

Browse More Appraisals