Could be an old white dot, I guess, but maybe it's the rare Columbia "Richard." Only a few of them were sold, comparatively, but most of them were bought by "Dick"s. Sorry, I couldn't resist.
You'd have to weigh it to find out how heavy it is, and take it to the pro shop to find out top weight, etc. I suppose there's someone out there that could tell you when it was made by the serial number. For more general info try www.bowlingballreviews.com, and look through their Columbia section. Best of luck and keep us informed.
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