{on front of mvent} Patent {above a little cross shaped sybol, above another H symbol which looks like a backwards and forwards pair of F's if not a fancy H}.
Be careful when removing the dials. I'm fairly certain that the hour wheel is reverse threaded.
Jay
In reply to Be careful when removing the by vintagebulova.com
In reply to The Cross is the sign of a by FifthAvenueRes…
Under the cross, I believe you will see the maker's mark: FHF, or Fabrique Horlogerie de Fontainemelon. This is the calibre 29. Since it is under the patent mark on the added plate for the complication, this leads me to believe the entire design is by them, as opposed to an ebauche modified by Bulova. An excellent example and not often found in good condition.
In reply to Under the cross, I believe by Reverend Rob