IBM Master Program Clock; Metal Disc Type (1933)
Few things give me joy like acquiring a piece that has a hallmark, patent number, serial number or model number. For me collecting is getting to understand the past, and having these time markers usually means with a little research I can put the item into a larger historical context. This IBM Master Program Clock; Metal Disc Type circa 1933 is a great example of research paradise. Business equipment is one of those really fun…
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