Accordion-style folding book in the Batak Pustaka tradition

This item is an accordion-folded manuscript composed of what appears to be organic bark or fiber panels (stylistically consistent with 'laklak' used in Sumatra). It features a series of illustrative and textual elements rendered in black and reddish ink. The top panel visible displays a stylized anthropomorphic figure holding a weapon, rendered in a folk-art style. Subsquent panels contain dense grids, geometric patterns, and columns of script that are stylistically consistent with the Batak script of Indonesia. A central panel shows a complex star or compass-like diagram with insect-like or symbolic figures at the terminal points. The construction utilizes a continuous strip of material folded into discrete rectangular sections, approximately the width of a hand. The edges show slight fraying and wear, and the material has a naturally aged, light-tan patina. No specific date or author is visible, though the craftsmanship is in the manner of traditional Pustaka divinatory books used by ritual specialists (datu). The identification remains a hypothesis based on visual motifs and construction style, as no modern hallmarks or verifiable labels are present.

I have reviewed the images of this accordion-folded manuscript, which displays characteristics associated with the Pustaka tradition of the Batak people of Sumatra. Based on what I can see, the material appears to be bark or organic fiber consistent with 'laklak,' and the script and iconography suggest a ritual book used by a 'datu' for divination or medicine. However, I cannot verify the physical age of the material or the chemical composition of the inks from a photo alone. The value of $600 to $1,200 is based on the hypothesis that this is a late 19th or early 20th-century ritual object. This estimate reflects the market demand for Indonesian ethnographic manuscripts, where condition, complexity of illustrations, and completeness are primary drivers. The slight fraying and aged patina are consistent with an older piece, but I cannot determine if these are signs of natural aging or artificial distressing. To move beyond this working assumption, a physical inspection would be required to analyze the fiber structure, the depth of the ink penetration, and the specific dialect of the Batak script. Documentation regarding provenance would also be essential for a higher valuation. If this item were determined to be a modern souvenir produced for the mid-to-late 20th-century tourist trade rather than a ritual object, its market value would typically fall into the $50 to $150 range. Conversely, if it were documented as an early 19th-century specimen with rare celestial diagrams, the valuation could increase significantly. Given the prevalence of high-quality replicas, the current estimate assumes the item’s construction is consistent with period-correct traditional practices.