Vintage AMBU Elements from post-builders set for rechargeable batteries Chicago,

Description

Vintage Rare  AMBU Elements from post-builders set for rechargeable batteries Chicago,ILL.
The elements and the box are in good condition with slight wear on the inscription on the box and element no.2
Each item has an inscription AMBU and number 1, 2, 3, 5, 6, 7, 8 of a total of 10 pieces. The lid of the box closes tightly.
hese are moulds which are set over the stumps of -posts which have been drilled short in removing the inter-cell connectors.                                                                                        Lead is then melted in with a burning flame to build the post up to the proper height.
Please,take a look at the photos that give a good idea of the external and internal condition.
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