They did evolve over time with the cast aluminium pedal and seat brackets gradually being replaced with fabricated steel examples. It's not unknown to see a mix on one carriage, i.e. a fabricated pedal bracket and a cast seat bracket.
I assume they fitted the cast ones until they ran out and then fitted steel ones.
The elevating handwheel with the notches all round I have is in aluminium.
Ron, your telescope bracket looks fabricated, is it an original?
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Adrian Barrell
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