Check the listing for details. VTG Microbeads Glas-Shot Conversion Factors Pocket Guide Booklet Pamphlet. Condition: Used, Made in United States. Listed at 9.99 USD. Delve into the world of vintage physics with this concise guide to GLAS-SHOT conversion factors. This booklet, dating back to the early to mid-20th century, offers a snapshot of the knowledge needed for engineering and scientific calculations, making it a must-have for enthusiasts and collectors alike. Crafted in the United States, the pamphlet stands as a testament to the era's educational materials. Its unmodified state preserves the originality and authenticity of the information, providing a tangible connection to the past. This piece serves not only as a collectible but also as a potential resource for historical research or educational purposes. Thin for pocket, but taller than pocket.