Telephone Insulators
 
The Hunharian telephone network was the Hungarian Mail's and Railway's own one. We called them for the mail's wires, and the mail's poles. The Hungarian National Railways (MÁV) and near the river dams was used similar technology, which used the mail. The Insulators's number are from the mails's name: Hungarian Mail: "Magyar Posta" : MP-2 and MP-3, these are the globe-head Insulators only.
The transposition insulator is: MPK Insulator in one size. The MPK is: "Magyar Posta Keresztezési" : Hugarian Mail Transposition. This 2 type are telephone Insulators only.
The other Insulators made for the telegraph lines. There used 5 mm steel wires, it were had to hold. Lot of Insularor were manufactured for it, and they were not have to, because the telephone lines were better, and it didn't need fat steel wire. Bronze wires were used.
Lot of Insulators remaining, ant they were built in the telephone lines. I don1t know its number
The MPK transposition Insulators. Tho this like Insulator is cheaper than 4 commos ones with pin hardware. This Insulators are more rare, some wire pairs needed transposition every 20th pole, some 40th pole etc.
There are the common telephone Insulators, Cylinder-head, DG-2, and MP-2 Globe-head. They were used to the in city lines, and shorter point-o-point lines.
The Railway telephone, telegraph or long point-o-point line's Insulators. MP-3 Globe-head, Cylinder-heads one with very rare OTE mark, a DG-5 Insulators. The OTE marking Insulator was made to export to Greece, but it stayed home..
Rare stripped Globe Head MP-3s. I think, it signed an important line.
Wire terminal Insulators. The textile-rubber insulated telephone wire run cross the Insulator's tube, to keep dry the wire's end, and protects the insulated wire from the water. This Insulators are rare already..