====== Photos ======

Cobs 253a and 253b are nearly pin for pin identical except for two extra single pin notes that sound prior to a held chord (see the fourth photo). It is very unlikely that random pinning errors would occur at the same position on the two notes so this was probably a minor difference in the pinning patterns.

===== 253ab =====
{{cobs:253:253ab_1.jpg }}
{{cobs:253:253ab_2.jpg|}}
{{cobs:253:253ab_3.jpg }}
{{cobs:253:253ab_4.jpg|}}