Marijn Bosman
The original GUMSHOE website credits Marijn Bosman as “City Councillor Sustainability”. Her contribution on that 2018 page frames gum litter as a city problem and connects the shoe to a practical public-space issue. The portrait reproduced here comes from the original project website.
The title is a project-period credit. It is not presented as her current office or as a new endorsement of today’s commercial offer.
Mustafa Tanriverdi
The same page credits Mustafa Tanriverdi to Marketing & Investments for the Amsterdam Metropolitan Area and Haarlemmermeer. His contribution focuses on awareness: a shoe can bring a gum-litter conversation to people without relying only on instructions or criticism.
That role belongs to the original project record. Neither contribution is evidence of a new financial partnership, a current public-sector purchase or approval of a present-day product price.
Why these contributions matter
The material developer answers what can be made from waste; the footwear designer gives it a usable form. The city voices explain why the problem matters in public space. Together, those roles show the difference between a material experiment and a campaign people can recognise.
A useful project-credit checklist
- Record each contributor’s name exactly as the source credits it.
- Attach the role to the relevant project and date.
- Describe the contribution without inventing a present title or quotation.
- Separate a campaign credit from a current seller, stock or delivery statement.
- CITY: Amsterdam gives the project its street context.
- MATERIAL: Gumdrop develops the Gum-tec compound.
- DESIGN: Explicit turns a material into a sneaker.
- MESSAGE: The 2018 campaign makes the idea visible.
Sources & image credits
Original GUMSHOE photography and project images are used with the owner’s permission. New diagrams are original explanatory work.