L, R, S, or G marked mags would all be correct for your RemRand pistol. That stands for Little, Risdon, Scovill and General Shaver.

If you go to http://www.coolgunsite.com and look around, they have pictures of all the above mentioned mags. Also while their, you should order one of Charles W. Clawson's books on collectiong the 1911 and 1911A1 service pistol.