This is a 4 3/4" ratchet in 1/4" drive by S K Wayne. It has lost the circlip and a previous owner "rigged" it so he could still use it.
Would you like a clip ?
Sure, but realize that I will repair the ratchet and resell it.
PM me your mailing info and I'll send it to you. I think I have a whole rebuild kit if you want it. Let me know.