U-277-377
(Side tie styles with extended inner skirts, most are also signal styles)
U-278
U-279
U-280
U-280A
U-280B
U-281
U-282
U-282A
U-283
U-283A
U-285
U-286
U-286A
U-287
U-288
U-288A
U-289
U-290
U-290A
U-291
U-291A
U-292
U-292A
U-293
U-293A
U-294
U-294A
U-295
U-295A
U-295B
U-296
U-297
U-297A
U-298
U-299
U-300
U-301
U-303
U-304
U-305
U-306
U-308
U-308A
U-309
U-310
U-310A
U-311
U-313
U-313A
U-314
U-317
U-317A
U-318
U-320
U-320A
U-321
U-322
U-323
U-326
U-330
U-331
U-331A
U-332
U-334
U-335
U-337