Nice. Almost a broken ladder. 01234550, if only that second 5 was a 6. LOL I don't believe those have any added value, but fun serial numbers.
Trivia (or bar bet) question - how many 'ones' (number or word) appear on both sides of this silver certificate? Don't include any digits in the serial number. Winner gets the #1 trophy (from the dollar store, of course )
Winner, winner, chicken dinner! 27 is what I came up with as well, after numerous re-counts (the '1' in the serial # was not considered)