Lynchburg Insulators

A Collector's Guide

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Chart of Style and CD Numbers

The first chart lists the Lynchburg style numbers as they appear on insulators that carry the LYNCHBURG name. The second chart below lists other style numbers that are listed in Lynchburg records with their corresponding CD number.

Chart of Existing Lettering Styles

Style Number

CD Number

No. 1
CD 251
No. 2 Cable
CD 252
No. 10
CD 106
No. 30
CD 121, 122
No. 31
CD 112
No. 32
CD 160
No. 36
CD 162
No. 36-190
CD 162
No. 38
CD 164
No. 38-20
CD 164
No. 43
CD 145
No. 44
CD 154
No. 53
CD 205
No. 62 Cable*
CD 252
No. 180
CD 281
No. 181
CD 306
No. 530
CD 205
* this is reported but not verified; it likely does not exist.


In addition to these, Lynchburg production records list style numbers that do not occur on Lynchburg insulators. Most of these are early in Lynchburg production and reflect the Gayner style numbering system. Gayner had developed a system that combined style numbers of the two leading insulator manufacturers of the time, Brookfield and Hemingray. Since these two companies were making millions of insulators, their style numbers would be familiar to buyers, linemen, and others who worked with the insulators.

So, for example, Gayner's CD 162 was designated No. 36-190. The 36 was Brookfield's number for this style, and 19 was Hemingray's designation, with Gayner typically adding a final 0 to the number. Likewise, Gayner's CD 153 was designated No. 48-400 and CD 164 was designated No. 38-20 (without an added 0!).

On some styles, Gayner simply added a 0 to Hemingray's number, for example No. 140 (Hemingray No 14, CD 160), No. 160 (Hemingray No. 16, CD 121), No. 530 (Hemingray No. 53, CD 205), and No. 620 (Hemingray No. 62 Cable, CD 252). Some of the hybrid Gayner numbers show up on Lynchburg insulators, such as NO. 36-190 (CD 162) and NO. 38-20 (CD 164). In one case, the lengthened Hemingray number occurs (NO. 530, CD 205).

So, it seems that early in Lynchburg production some records were made using the old Gayner style numbers. Certainly William Gayner who had brought the insulator molds and presses from Gayner to Lynchburg would be familiar with those designations.

Another possibility is that the first production runs at the Lynchburg plant were actually of insulators that still bore the Gayner lettering and style numbers before the molds were reworked and retooled with Lynchburg lettering (See Gayner Insulators at Lynchburg?). It is also possible that the so-called No Name Gayner insulators, with style numbers but without company lettering, were made at Lynchburg as the Gayner molds were being reworked (See No-Name Lynchburgs?). The reality is that we do not know.

In any case, the following chart lists the other style numbers from Lynchburg records with their corresponding CD number.

Chart of Production Record Styles

Style Number

CD Number

No. 48*
CD 153* or CD 154*
NO. 90
CD 106
No. 140
CD 160
No. 160**
CD 121**, 122
No. 620
CD 252

*This is likely a CD 153 but it is uncertain (See The Elusive No. 48).
**Since the No. 160 was an early production run (Dec 1, 1923 to Jan 26, 1924) it is likely that this was CD 121.