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Numerical order CD list (400-499)

Note:  Click on each insulator for larger pictures and more information!

CD 100-333 CD 334-377 CD 378-399 CD 400-499 CD 500-549 CD 550-599 CD 600-799 CD 1000-1199 CD unknown (tbd)
Note CDs 400-419 are special telephone styles
CD 400 CD 402 CD 403 CD 403.3 CD 404 CD 404.2 CD 404.5 CD 405 CD 405.5
CD 406 CD 407 CD 407 CD 408 CD 409 CD 414 CD 417 CD 420 CD 420.1
Note CDs 420-499 are side groove styles with one or two petticoats
CD 421 CD 421.1 CD 422 CD 423 CD 425 CD 427 CD 428 CD 429 CD 429.5 CD 430 CD 432 CD 434 CD 435
CD 435 CD 436 CD 438 CD 439 CD 439.5 CD 439.7 CD 440 CD 441 CD 441.5 CD 442 CD 443 CD 444 CD 445 CD 445 CD 445.2
CD 445.4 CD 446 CD 446.2 CD 447 CD 448 CD 449 CD 449 CD 449 CD 450 CD 451 CD 451.5 CD 451.5 CD 451.6
CD 453 CD 455 CD 456 CD 457 CD 459 CD 460 CD 470 CD 470 CD 470.1 CD 472 CD 474 CD 475
CD 478 CD 480 CD 485 CD 488 CD 488 CD 489 CD 490 CD 494 CD 494
CD 100-333 CD 334-377 CD 378-399 CD 400-499 CD 500-549 CD 550-599 CD 600-799 CD 1000-1199 CD unknown (tbd)

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