Original catalogues
Model names, prices, finishes and lineups as the manufacturer printed them.
PRIMARY SOURCEA source can change the story. Keep the trail with it.
Good research says
what it can’t prove.
Model names, prices, finishes and lineups as the manufacturer printed them.
PRIMARY SOURCEOrder sheets, dealer literature, advertisements and paperwork tied to a date.
CONTEMPORARY RECORDPeriod coverage and clear owner photographs can fill in details a catalogue missed.
CONTEXTForums and collector memory can point somewhere useful. Check the claim before repeating it.
FOLLOW THE CLUEHave a photograph or catalogue page? Put it on the topic board.