Dart fender tag help

Car is a 75 4 door

474
J42. N37. R11. Y39. 26. L2
EW1. U1. B41. G25. G52. N51
EW1. A2X9. DX9. 514. K30080
E44. D34. LL41. G5B 273XXX

Extra credit engine ID
5M318 05121280

Any help is appreciated.
Thanks

PS
There is a long (6 inch) tag attached also that says something about door s and frames. What is it?