|
|
Blue piano insulator
|
|
Davidson yellow uranium piano insulator
|
|
Davidson yellow uranium piano insulator
|
|
Green piano insulator
|
|
Light blue piano insulator
|
|
Bagley blue piano insulator
|
|
Bagley green piano insulator
|
|
Percival Vickers? yellow uranium piano insulator
|
|
Percival Vickers? yellow uranium piano insulator
|
|
Pale aqua piano insulator
|
|
Pale aqua piano insulator
|
|
Pyrex telephony insulator
|
|
|
|
