|Note_it=Pubblicizza dei modelli [[Spot Pen]]. Dal catalogo della ''"1929 British Industries Fair"''. Ripubblicata dal sito https://www.gracesguide.co.uk/ che mette a disposizione l'immagine sotto CC-BY-SA all'indirizzo: https://www.gracesguide.co.uk/images/a/a7/Im1929BIF-Spot_Pens.jpg.
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|Note_it=Pubblicizza dei modelli [[Spot]]. Dal catalogo della ''"1929 British Industries Fair"''. Ripubblicata dal sito https://www.gracesguide.co.uk/ che mette a disposizione l'immagine sotto CC-BY-SA all'indirizzo: https://www.gracesguide.co.uk/images/a/a7/Im1929BIF-Spot_Pens.jpg.
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|Note_en=Advertising for the [[Spot Pen]]] models. From ''"1929 British Industries Fair"'' catalog. Republished from https://www.gracesguide.co.uk/, where the image is published under GFDL at page: https://www.gracesguide.co.uk/images/a/a7/Im1929BIF-Spot_Pens.jpg.
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|Note_en=Advertising for the [[Spot]]] models. From ''"1929 British Industries Fair"'' catalog. Republished from https://www.gracesguide.co.uk/, where the image is published under GFDL at page: https://www.gracesguide.co.uk/images/a/a7/Im1929BIF-Spot_Pens.jpg.