Open the cylinder, remove all ammunition, check it again. Use a cleaning rod with a patch holder tip to swab the bore, chambers, and inside of the frame with patch wet with powder solvent. Replace patch holder tip with bore brush, and use brush to scrub bore and chambers. Use patch holder tip to run clean patches through the bore and chambers. Use a clean patch to wipe inside of frame.
Try e-gunparts.com
50-300 USD or so
25-65 USD
25-65 USD
About $50-$75. Rohm, also known as RG, was an inexpensive low quality handgun.
What is it worth? Cal 38 Special (RG63) on handle. Double action serial #54402 Rohm Gpirh sonheim-Benz
Find a gunsmith and ask to be shown how.
15-50 USD
25-65 USD or so
No published sn data that I am aware of
Most Rohm revolvers were considered low quality/ low value firearms. Depending on condition, $100.
RG is short for "Rohm Gmbh" which essentially is Rohm Ltd. in German. Rohm manufactured inexpensive (and somewhat questionable quality) handguns until 1986.