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With the death of its founder, occurred in [[1917]], the leadership passed to his sons, but at that time company's preminence in the market was only memory. In [[1925]] [[Holland]], following all other producers, converted production to celluloid. The pens of that period were substantially similar to those produced by other minor companies, but there are some original models, made with mother of pearl inserts, named [[Jewel Pen]], using the name of the nib. The company still continued to use hard rubber mixing it with celluloid; there are pens produced with cap head and barrel end in hard rubber, where barrel and body are celluloid, or vice versa.

With the death of its founder, occurred in [[1917]], the leadership passed to his sons, but at that time company's preminence in the market was only memory. In [[1925]] [[Holland]], following all other producers, converted production to celluloid. The pens of that period were substantially similar to those produced by other minor companies, but there are some original models, made with mother of pearl inserts, named [[Jewel Pen]], using the name of the nib. The company still continued to use hard rubber mixing it with celluloid; there are pens produced with cap head and barrel end in hard rubber, where barrel and body are celluloid, or vice versa.

The company severely suffered the crisis of 1929, having low financial resources. The pen quality decreased gradually for all the '30s, when the pens that were made by assembling parts produced by other companies with nibs and stocks parts resulting from earlier production, while the bulk of its revenue came from sales activities of the stationery shop that was on the ground floor of the company building. In [[1950]], with the death of the last son of ''John Holland'' the activity ceased<ref>although the end is [http://www.pensandwatches.com/_pages/pen_company_photos/holland_pen_company.htm reported] to be in the late '70s, perhaps because the local business sales remained standing, at least until the company's palace was sold at auction with all the stocks in it in 1980.</ref>

The company severely suffered the crisis of 1929, having low financial resources. The pen quality decreased gradually for all the '30s, when the pens that were made by assembling parts produced by other companies with nibs and stocks parts resulting from earlier production, while the bulk of its revenue came from sales activities of the stationery shop that was on the ground floor of the company building. In 1950, with the death of the last son of ''John Holland'' the activity ceased<ref>although the end is [http://www.pensandwatches.com/_pages/pen_company_photos/holland_pen_company.htm reported] to be in the late '70s, perhaps because the local business sales remained standing, at least until the company's palace was sold at auction with all the stocks in it in 1980.</ref>

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