What was this piece of equipment used for?

[Arthur Margolin]

Hello everyone,

My first post regards a mystery -- at least to me.

I purchased this object for a few £'s at a charity shop in Christchurch, England, because: 1) it clearly seemed to have something to do with photography, and 2) I had no idea what that might be.

It's made by Johnsons of Hendon, a firm, I understand, that was for many decades a major supplier of photography-related chemicals and equipment. But beyond that easily obtainable fact (the nameplate is on the front of the drawer), I have been unable to find out anything else about what this might have been used for.

Can anyone help shed light on this?

Best wishes,

Arthur [Research Scientist (retired), Photographer (avocationally active),  and Digital Artist (aspiring)]

[Arthur Margolin]

Ah, Serendipity smiled upon you that day!

Thanks for the follow-up -- I look forward to seeing those very intriguing images....

Best,

Arthur

[Charles Herbert]

Finally I have managed to invert the negatives.  Link to Album