Nice article. I have a Kodak 3A Autographic Special and some NOS Verichrome Pan from the 70s, which I have yet to shoot when the weather improves and we are no longer quarantining here in the USA.
One point worth noting however, is that 122 film was originally supplied in 10 exposure and 6 exposure rolls, although by the time the film was discontinued in the 1970s, only 6 exposure rolls were being produced.
There was also a plate adapter back available for the 3A, which allowed you to shoot dry plates. When I owned a 3A last year, I shot some fairly regularly. Really cool format.
I'd be pretty surprised if J. Lane didn't either have or offer ASA 25 speed ortho plates in that size, if you have the plate back (the web site says they can cut any size you need). Otherwise, you could just block the red window (ortho shouldn't be sensitive to its light, but why take the chance?) and clamp the plate between the roll cover and the film rails. "Postcard" format is nice for contact printing, anyway.
I'd be pretty surprised if J. Lane didn't either have or offer ASA 25 speed ortho plates in that size, if you have the plate back (the web site says they can cut any size you need). Otherwise, you could just block the red window (ortho shouldn't be sensitive to its light, but why take the chance?) and clamp the plate between the roll cover and the film rails. "Postcard" format is nice for contact printing, anyway.
One of these days, I'm going to have to order some of those in 9x12 cm size. I've got a couple Ideal plate cameras (one marked Ica, the other Zeiss-Ikon) that have had to make do with film in sheaths for decades.