Hi Fred, The keyboard character set seems pretty standard - though I do notice that it has a United Kingdom currency symbol (£) but has a US power cord and is wired for 110 v.
I did find an image of a Flexowriter with two front panel lamps in this document, p32, image on p33 https://bitsavers.trailing-edge.com/pdf/friden/brochures/SP9012_Friden_Data_Processing_Products_In_Action_1964.pdf Seems like the extra lamp was associated with verification of control tapes for numerically controlled metalworking machines. Though from the description the machine that I have is different again (my machine does not have an ERROR RESET button) Machine front panel switches are (left side) START READ STOP READ SINGLE READ NON_PRINT (right side) [blank] OPT STOP CODE DELETE RUN OUT So the mystery still remains Peter
