Kayline Denver Kal-Glas Vinyl Window Stamp B-87 - DOT-138 Soft Top Marking

This is a close-up photograph (not a paper document) of a manufacturer's marking embossed/stamped into a flexible vinyl soft-top window, along with the maker's sticker. The stamped marking reads "Kal-Glas," followed by a compliance line reading "DOT-138 AS 6 M..." (partially legible), and care instructions: "DO NOT RUB DRY, WASH WITH WATER SOAKED CLOTH." Below the care text is the code "B-87," which is circled in red in the photo and enlarged in an inset zoom at the top of the image, confirming the characters "B-87" (the inset also shows the word "SOAKED" from the line above). Adjacent to the stamped area is a yellow-and-white adhesive sticker with a large yellow "K" logo and the brand name "KAYLINE," with "Denver Colorado" in script beneath it, identifying Kayline of Denver, Colorado as the top/window manufacturer or supplier. A reader can learn the window material brand (Kal-Glas), the apparent DOT/AS compliance marking, the recommended cleaning method for the vinyl window, the manufacturer branding (Kayline, Denver, Colorado), and the date/lot code B-87, which the uploader has highlighted as the item of interest.