Dear Sirs, my father started in the late 60's with BULL machines (tabulatrices imprimantes etc.) Later we had a GAMMA 10 and also the GE415 (wich is still built up in moment). In case you are interested in any spare parts, machines, sheets, documents etc please contact me. But i also like to ask you for your assistance. We bought a BULL PR54 some time ago and want to fix it to a PC. Unfortunately there is no description about the interface (level 6/66). Can you give us any information ? best regards, Felix Hammann Fabrikstrasse 6 67454 Hassloch phone +49 6324 3001 fax +49 6324 58543 sorry i had a wrong email adress to answer back in my mail