Distributions of the number ratios of Cepheids in VELOCE to those in Gaia as a function of magnitude (left) and P_puls (right). The comparison is limited to 245 VELOCE Cepheids for which G-band magnitudes are available and to $N_{\text{GaiaDR3,phot }}^{\text{Cep }}=1098$ MW Cepheids in Gaia with G < 13.3 mag and P > 0.9 day. $N_{\mathrm{G}\mathrm{a}\mathrm{i}\mathrm{a}\mathrm{D}\mathrm{R}3,\mathrm{R}\mathrm{V}}^{\mathrm{C}\mathrm{e}\mathrm{p}}=559$ have published RV time series measurements, cf. Sect. 5.4. Blue histograms show the fraction of VELOCE Cepheids relative to the Gaia sample, $N_{\text{VELOCE }}^{\mathrm{C}\mathrm{e}\mathrm{p}}/N_{\mathrm{G}\mathrm{a}\mathrm{i}\mathrm{a}\mathrm{D}\mathrm{R}3,\text{ phot }}^{\mathrm{C}\mathrm{e}\mathrm{p}}$, and red histograms show the fraction of Cepheids with Gaia RVs time series measurements relative to the same, $N_{\text{GaiaDR3,RV }}^{\mathrm{C}\mathrm{e}\mathrm{p}}/N_{\text{GaiaDR3,phot }}^{\mathrm{C}\mathrm{e}\mathrm{p}}$.