Lachlan, I had a look and I think you are correct this is a borderless easel.
The sizes indicated by the black lines:
Horizontal images
10,5 x 15cm
9 x 14cm
7,5 x 10,5cm
Vertical images
Twice 7,5 x 10,50cm
It is possible to place a 13 x 18cm sheet of paper and fix it. The top of the paper stops precisely where the white surface (again the top of the image) begins. When you place the black negative borders just outside the indicated lines of for instance 9 x 14, you will later be able to cut the image to 9 x 14cm borderless.
I did that in college when I took wedding photographs of people of the large persuasion to make them look slimmer. I made enough money on print requests to pay for a year of tuition, books, board and clothes. They all said that no one had ever photographed the "real me".
I did that in college when I took wedding photographs of people of the large persuasion to make them look slimmer. I made enough money on print requests to pay for a year of tuition, books, board and clothes. They all said that no one had ever photographed the "real me".
The Leitz Focomats Ic and IIc (35mm, and up to 6X9) made up to the early seventies have wooden baseboards with clamping systems, mostly to fix easels to the baseboard. These easels have corresponding slots underneath.
But there also exists a tilting device that one can fix an easel to. This device turns in pretty much any direction. I have had this piece for ages and never used it. See pictures . . .
You may not use that, but it sure is cool. When I was a kid, one of my good friends had mother and father college professors. They were connoisseurs of everything, Lionel O gauge trains, Leica cameras etc. He had a Leitz enlarger and easel. Auto focus etc. I started with my Dad's Federal, eventually got a Beseler 4x5. I've been lucky to find a couple almost never used Zone VI VC enlargers 8x10 and 5x7. They are beautiful, and perfect for what I do. Still envy the DeVere and Durst color outfits.
My Krokus III (a poland enlarger) has both tilt of the film plane and of the lens board ; in 1971 it costed approximately 80$ (without a lens). The film size goes up to 6x9 between two anti-newton glasses. For perspective correction, I used this facility only once (to try it ; with success). When you don't use it, the two planes are efficiently blocked square.
POLKa
I believe you'll find movements in most old school enlargers and those that came later, as being able to take even small enlarger and project the image to the side, for large photographs was a key feature, especially in small darkrooms, though making those prints by the use of the floor or low shelf systems is usually an option too.