| Bridge for 4 mm telescope | 04042761087339 | Olympus Winter & Ibe GmbH | Class I | |
| Bridge one-way | 04042761087353 | Olympus Winter & Ibe GmbH | Class I | |
| Bridge one-way, with stopcock | 04042761087360 | Olympus Winter & Ibe GmbH | Class I | |
| Bridge two-way, instrument channels from above | 04042761087414 | Olympus Winter & Ibe GmbH | Class I | |
| Bridge two-way, instrument channels from above, with stopcocks | 04042761087131 | Olympus Winter & Ibe GmbH | Class I | |
| Bridge two-way, instrument channels from below | 04042761087421 | Olympus Winter & Ibe GmbH | Class I | |
| Bridge two-way, instrument channels from below, with stopcocks | 04042761087445 | Olympus Winter & Ibe GmbH | Class I | |