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There is 1 insulator style that matches your search criteria, shown below:
• Primary embossing is TWO PIECE TRANSPOSITION (TWO)
CD 190/191
CD 190/191
Of the 1 insulator style shown above, the following 4 embossings match your search criteria:

Design ID
Primary EmbossingThe Primary Embossing is typically found on the front of the insulator and usually identifies either the manufacturer (such as "Hemingray") or the company that the insulator was made for (such as "AM.TEL.&TEL.CO.")

Insulators with No Name or No Embossing are denoted as such.
EINThe Embossing Index Number (EIN) is a unique number assigned by the collecting hobby to each distinct embossing for an insulator design. It is normally shown in brackets, e.g. [050].
EmbossingMost common terms:
(F-Skirt): Front Skirt
(R-Skirt): Rear Skirt
/: New line of embossing
{}: Special note (not embossed on the insulator)
[#]: Represents a number

Other terms:
{MLOB}: Mold Line Over Base
(F-Crown): Front Crown
(R-Crown): Rear Crown
(F-Umbrella): Front Umbrella
(R-Umbrella): Rear Umbrella
BaseThe base is the bottom of the insulator. Hemingray made 4 different types of bases:

1. SDP: Sharp Drip Points
2. RDP: Round Drip Points
3. CB: Corrugated Base
4. SB: Smooth Base
Year AddedThis is the year that this embossing was officially recognized and added to the McDougald (1991-2008) or Briel (2011-present) insulator price guides. It is not necessarily the year this embossing was discovered.
 Photo
Status✓ = In my collection

If the value in this column says WANTED, then that specific insulator is on my wanted list! If you have that insulator and would like to sell it, click on the WANTED link to submit photos and contact me.
CD 190/191TWO PIECE TRANSPOSITION [010] {191 Top} (F-Skirt) TWO PIECE/TRANSPOSITION (R-Skirt) ['AM.TEL.&TEL.CO.' blotted out] {190 Bottom} (F-Skirt) TWO PIECE/TRANSPOSITION (R-Skirt) ['AM.TEL.&TEL.CO.' blotted out] SB - Photo✓
CD 190/191TWO PIECE TRANSPOSITION [020] {191 Top} (F-Skirt) TWO PIECE/TRANSPOSITION {190 Bottom} (F-Skirt) TWO PIECE/TRANSPOSITION SB - Photo✓
CD 190/191TWO PIECE TRANSPOSITION [030] {191 Top} (F-Skirt) TWO PIECE/TRANSPOSITON {Note spelling} {190 Bottom} (F-Skirt) TWO PIECE/TRANSPOSITON {Note spelling}
Note: I question if the CD 191 top exists. I have only ever seen the misspelling on the CD 190 bottom.		 SB - No PhotoWANTED
($500 Reward)
CD 190/191TWO PIECE TRANSPOSITION [040] {191 Top} {Unverified} {190 Bottom} (F-Skirt) TWO PIECE/TRANSPOSITION (R-Skirt) [Blotted out embossing] SB - No Photo-