N.E.C. coin '75 years Goffertstadion'
Client: Supporters association N.E.C.
DTR design: Eduardo Pérez
Format: diameter 50 mm
Material: tin-bismuth alloy
Supporters campaign for local entrepreneurs
Supporters of the Nijmegen football club NEC have taken up a plan to give local entrepreneurs a helping hand. Many entrepreneurs miss out on revenue due to the corona lockdowns. The supporters association approached various companies to put together a “Teske veur Thuus” (bag for home) together. The package includes a few beers from various breweries in the area, a Nimwegen sausage, special massage oil and merchandise from the club.
N.E.C. coin ’75 years of Goffertstadion’
De Tinnen Roos designed a special commemorative coin in which the Goffert Stadium is central. This sports complex has undergone some major renovations in 75 years. The image on the coin shows the stadium from above. By optically dividing the stadium in two, you can see the field as it used to be and what the situation is now. The text refers to the stadium’s long history. On the other side, the entrance to the stadium is depicted with the supporters’ cry “weer trekken wij ten strijde”. All the elements together make it a must-have souvenir for the NEC supporter.
Order “Teske veur Thuus”
Would you like to get hold of our N.E.C. coin ’75 years Goffertstadion’, order the Teske veur Thuus via the promotion page of the supporters association. You can order online until May 2, 2021. Pick up on May 8 at NEC’s Goffert Stadium. A test costs 19.00 euros; a reference to the year 1900 when NEC was founded.
What our clients say
Planning to create a souvenir?
Do you have a special occasion that you want to capture in a unique way? De Tinnen Roos thinks along with you in the design and manufacture of a souvenir. Suitable as a gift to special people, but also for private sale as a souvenir. Please feel free to contact us for the possibilities and a quotation.
We’ve been producing unique and beautiful souvenirs for a large variety of clients
Design and model
Design on the computer
ZBrush and SolidWorks were used to design this coin. In these programs, drawings of the stadium were made on the basis of old and new photos. They were also used to design the other components shown on the coin. For the entire image, the most recognizable parts of the stadium have been used.
The design was sent by the computer to our milling machine. The plastic was removed layer by layer from a piece of plastic. During this process, the details became more and more visible. After everything had been milled out, the plastic coin was cleaned so that there was no leftover sharps and other dirt on it. Ready for the first casting to make masters.
Making mold and casting
A number of masters were cast in a first mold using the plastic print. Masters are used to make the production mold. All molds are manufactured in-house and adapted per product for the best casting results.
It is cast with a tin-bismuth alloy. This alloy is produced by ourselves in the casting pots. With each pour, the mixture is manually poured into the spincasting machine.
Sandblasting with soda
Before the coin is given an acid bath, it is completely cleaned with the sandblasting technique. The sand has been replaced by soda, which immediately makes the coin free of grease. By carefully cleaning the entire surface, the acid can grab everything well in the next step and no stains will form on the surface. Soda blasting has the advantage of a soda bath that you do not have to wait for the soda to do its job.
Finishing with acids
After cutting the coin clean and grinding the edges, the whole is not yet ready. The dull silver color of the material itself is still present. To get the antique look of our end product, the coins have been given an acid bath. The entire surface was carefully made free of grease and dust before the acid was added. The smallest details were brushed with a toothbrush so that no spots were missed. Finally, the brush has been brushed clean to buff away the dark layer and give the miniature artwork its final appearance. A layer of Zapon lacquer ensures that the coin retains its color and that the acid layer cannot give off color. At the same time it gets a small gloss layer.
Schele Daan (Erik Langedijk) and Hennie Linders present the content of the Teske veur Thuus in their own Nimweigh way.