On your overprinted stamps, see the note in Scott following Venezuela, Scott #135. The last stamp is Venezuela, Scott #247.
Identified almost all, except first stamp. Is there a Scott number for the stamp without overprint? When it was issued?
Sorry, I missed the top stamp. That stamp is a registration stamp. Venezuela, Scott #F2. The stamp without overprint is Scott #F1.
Thank you, Michael. Three more to go!
The top one is Venezuela, Scott #282 (if perf 12 1/2); Scott #282a (if perf 14) The second is Scott #406 The bottom one is Scott #374