Left Side Receiver Serial Number (In Iran, Numbers are read left to right): it has five numbers and a letter; "05056 ayn" (the twenty-first letter in the Farsi alphabet). Script (Read Right to Left: Toe-fang Nay-moo-neh 1309 Kar-haw-neh Ass-lah-hay Saw-zee Brno (Rifle Model 1309 Factory Weapon Manufacturing Brno (or, Asslahhay can also mean 'rifle'; Sawzee can also mean 'making' or 'building'; 1309 is the Persian Calendar Year equal to approximately 1929 Gregorian calendar)
Right Side Receiver: Crown Proof Mark, Crossed Swords, alphabet letter "seh", alphabet letter "teh", number "12"
Bolt: reading left to right; number "6" (partially ground away), letter 'ayn'
Also, there might be some numbers, proofs or other words stamped on the wooden stock in various places. I wouldn't intentionally modify a 98/29 but I would still like to have a rifle like yours!