No production records available. Import of most RG handguns to the US stopped with the 1968 Gun Control Act.
Ruger has never made a model with that number. You might be referring to a RG, which was made in Germany. No sn records.
You don't. They were not made to be taken apart.
To determine the age of an RG Industries revolver model RG23 with serial number T452477, you would typically need to consult the manufacturer's records or resources specific to RG Industries, as they can provide information on production dates based on serial numbers. RG Industries was known to produce firearms primarily in the 1970s and 1980s, so the revolver is likely from that time period. If you have access to a firearms database or a collector's guide, you may find more precise information regarding its specific age.
15-50 USD
25 USD
ROHM
Inexpensive. @ 50-60's
30 or so
http://www.oldguns.net/q&a8_98.htm
Glad to help: The serial number is located on the bottom of the aluminum metal frame of the grip, that is, the very bottom under the grip. Point of interest, the RG-23 six shot .22 caliber revolver, was made in two barrel lengths, 1.75 inch and 3.38 inches. It is a cheap, yet fairly well made revolver, and the parts, and usually the whole gun is/are made by Rohm Gmbh in Sontheim/Brenz, Germany. It can be worth between 50 to 75 US dollars depending upon condition.
20-50 or so
No such model in the Ruger line.