d04271r: 
backs with
standard frame
33
d04271r270a d04271r270b r270box d04271r1186a d04271r1186b d04271r1760
d04271r1294 d04271r1295 d04271r1738 d04271r1739 d04271r1808 d04271r1809
d04271r1718a d04271r1718b d04271r1879a d04271r1879b d04271r1913a d04271r1913b
d04271r1926 d04271r1953 d04271r2146 d04271r2147 d04271r2326a d04271r2326b
d04271r2445 d04271r2447a d04271r2447b r2447box d04271r2598 d04271r2714
d04271r2768 d04271r2820 d04271r2942 d04271r3269    
d04271r1733a d04271r1733b d04271r1734a d04271r1734b
d04271r1735 d04271r1736 d04271r2144 d04271r2769
d04271r1925a d04271r1925b d04271r2018 d04271r2674
d04271r1737 d04271r1737b d04271r2386a d04271r2385b
d04271r2720a d04271r2720b d04271r2791a d04271r2791b
d04271r3035 d04271r2015 d04271r2015b d04271r3197
d04271r3235 d04271r3384a d04271r3384b