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Not only did Hemingray differentiate between their different insulator styles by using style numbers, but several Hemingray styles were also grouped into series as well:

510 Series (8 styles)

CD 233.2
CD 233.2
№ 511
CD 230
CD 230
№ 512
CD 232.2
CD 232.2
№ 513
CD 238
CD 238
№ 514
CD 301.5
CD 301.5
№ 515
UD 3030
UD 3030
№ 517
CD 1052
CD 1052
№ 518
CD 1050
CD 1050
№ 519

600 Series (5 styles)

CD 218
CD 218
№ 660
CD 219
CD 219
№ 660
CD 216
CD 216
№ 661
CD 220
CD 220
№ 670
CD 221
CD 221
№ 680

800 Series (5 styles)

CD 231
CD 231
№ 820
CD 231.2
CD 231.2
№ 820
CD 238.6
CD 238.6
№ 830
CD 239
CD 239
№ 830
CD 239.2
CD 239.2
№ 850-1

Cable Series (6 styles)

CD 251
CD 251
№ 1 Cable
CD 252
CD 252
№ 2 Cable
CD 254
CD 254
№ 3 Cable
CD 251
CD 251
№ 61 Cable
CD 252
CD 252
№ 62 Cable
CD 254
CD 254
№ 63 Cable

D Series (10 styles)

CD 168
CD 168
D-510
CD 230
CD 230
D-512
CD 230.1
CD 230.1
D-512
CD 232
CD 232
D-513
CD 238
CD 238
D-514
CD 238.1
CD 238.1
D-514
CD 299.7
CD 299.7
D-514
CD 1052
CD 1052
D-518
CD 1053
CD 1053
D-519
CD 137
CD 137
D-990

E Series (6 styles)

CD 100.6
CD 100.6
E1
CD 128
CD 128
E1
CD 122.4
CD 122.4
E2
CD 233
CD 233
E3
UD 3005
UD 3005
E-50
UD 3006
UD 3006
E-50

High Voltage Series (10 styles)

CD 280
CD 280
№ 1 High Voltage
CD 291
CD 291
№ 1 High Voltage
CD 281
CD 281
№ 1 High Voltage
CD 280.1
CD 280.1
№ 1 High Voltage
CD 281
CD 281
№ 2 High Voltage
CD 291
CD 291
№ 3 High Voltage
CD 295
CD 295
№ 4 High Voltage
CD 281
CD 281
№ 71 High Voltage
CD 295
CD 295
№ 72 High Voltage
CD 280
CD 280
№ 100 H.V.

Muncie Type Series (2 styles)

CD 302
CD 302
№ 75 Muncie Type
CD 303/310
CD 303/310
№ 76 Muncie Type

Provo Type Series (4 styles)

CD 249
CD 249
№ 0 Provo Type
CD 283
CD 283
№ 1 Provo Type
CD 282
CD 282
№ 2 Provo Type
CD 303.5
CD 303.5
№ 4 Provo Type

Telluride Type Series (2 styles)

CD 309.5
CD 309.5
Telluride Type B
CD 286.9
CD 286.9
Telluride Type C

TS Series (3 styles)

CD 129
CD 129
TS
CD 142
CD 142
TS-2
CD 142.4
CD 142.4
TS 3