Questions On 552, 632 And Scott 594

Hi im an antiques dealer and manage estate sales, not a stamp collector but acquired a box of postcards and envelopes with many cancelled stamps. After 3+ hrs a night for a week educating myself and purchasing a perf tool and magnifying stand I'm still a little confused due to conflicting reports online on the measurements of these 3 stamps.
I have a pair of 1 cent Franklin stamps design A155, verified perf 11 19.5 x 22mm. I took a 632 and a 552 cut corners off and matched them up the pair is wider than both. I went to mystic today and showed them the stamps, she said my 632 with cut corners is a rotary ??? 552 is 18.5-19x 22 and can be as much as 1/4 22mm off so what is the pair? A 594 I've read is 19.75 x 22.25 and read 19.5+ x22+ I've even saw (read) 19.75x21.75. So I left the pair with mystic along with many others to identify and make an offer to buy but I hope some one could shed some light on what the real measurement are or is it that much of a range and it's best to send out for certification?

My Scott catalog says 594 is "valued with preforations just touching frameline on one side.

Frameline does touch perf on my pair. I don't th8nk 8 have a pair of rare 594s but would like to know if there is an exact measurment so if I ever am lucky enough I don't sell it for .25 cents lol or waste $30 getting a scott 552 certified lol.