I have a desk that has a drawer rail guide made by Reiss MF Corp., who I discovered no longer makes furniture products, but they gave me your contact information. As best I can read the numbers on it, there are 3 different sets of numbers as follows:
2855260
2857233
R22
The guide runs on a metal rail that is about 1 1/4 inches wide.
Would you carry a part that might work? If you think you have something, please let me know how much it would cost for 4 of them and how to order them.
Thanks for your help and let me know if you have need further information,
Steve