<HTML>Stephen: The crack in the top of the Gulbransen sounds like a separated pin block. On more than one occassion I have repaired the separated pin block on many pianos....mainly Everett Studio pianos  without lowering the pitch from A-440. I fill the crack....many up to l/8" wide....with Titebond Yellow Glue.....protect the plate with oak strips....pull crack together with attatched "C" clamps....remove one screw at top of plate at a time....drill completely through the screw hole through back of instrument and replace with bolts ....3/16 X ? ...long enought to hold the plate, block and frame secure with lock nuts & washers....proceed to the next plate screw until all are secure....Remove "C" Clamps ONLY AFTER ALL BOLTS HAVE BEEN SECURED. I'm sure this is unorthodox to a number of qualified technicians but I've been repairing separated pin blocks for 25 years this way and as of this date.....not one...not one has ever failed in any shape, form, nor fashion. They all hold up to A-440 and It is not necessary to lower the pitch using this method. The grand piano  that has been in a fire....be very...very careful....maybe too much steam...smoke acidic....can get into a lot of trouble, Tommy Black Birmingham, Ala. </HTML>